http://www.phoronix.com/scan.php?pa...item&px=MTA1NDU

This has been a big mess especially for Linux users since Intel isn't allowed to provide an open-source driver (or any documentation) since they don't own control over the graphics IP and Imagination Technologies generally isn't an open-source friendly firm. PowerVR graphics have been a mess under Linux for not only Intel but also for the multiple other vendors relying upon the very common PowerVR technology within their hardware.